Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Knock Sensor: Service and Repair

Replacement
1. Remove the oil filter with the special oil filter wrench.

2. Disconnect the knock sensor connector, then remove the knock sensor.
3. Install the knock sensor and oil filter.